Domain Mapping plugin instructions..

I have been reading the forum on the different issues people have with domain mapping, I am looking for a simple guide to the plugin with detailed instructions on setting up the plugin and also mapping domains and doing the DNS changes needed to the domains to be mapped.. I am not finding this anywhere... I saw some brief instructions on the link to "get support" from the plugin page but I did not see enough info there for a non-techie to be able to pull this off, at least not me...

can you point me in the right direction to find more detailed instructions for this plugin?

Many thanks...

Also, if I want to use the "supporter" plugin, should I wrestle this one first and then try to tackle the the Domain Mapping plugin?

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